Elsewhere, jihadis bearing Kalshnikov AK-47 assault rifles try their hand at military maneuvers, but look a far cry from the highly disciplined troops they see themselves as.

And when one terrorist attempts a fireman's lift on one of his comrades, he struggles for a moment before toppling over and falling to the ground.

Certain sections of the film, such as when a group of men seem to imitate a Hollywood action film by storming a house, have been sped up to look more impressive.

Work Out: Exercises appear to quickly wear the terrorists out (Photo: YouTube)

But it looks more like a dodgy home video than a sleek, professional production.

ISIS claims the video, which was uploaded to YouTube, was filmed close to town of Homs in Syria, where the terrorist group murdered two men earlier this week.

Fighting has escalated across the war-town country in recent weeks, with one observer saying it is having a devastating effect on the local population.

Dominik Stillhart, of the International Committee for the Red Cross, said: "The fighting is escalating in many parts of the country and more and more people are being forced to flee their homes. It is causing untold suffering."